20 Fenchurch Street Project Building

20 Fenchurch Street

London | United Kingdom
Business Area
Permasteelisa, Gartner
Desgin ArchitectRafael Viñoly Architects
Executive Architect:Adamson Associates Architects
Ph.: © Simon Kennedy
The Concept

20 Fenchurch Street is a stunning addition to the London skyline. Its distinctive design - flaring out from a narrow base to the wide, curved roof - is signed by world-renowned architect Rafael Viñoly. At the top of the 160 m (525 ft) high tower stands the three-level Sky Garden, featuring 360-degree views of the City of London and hosting gardens, an open-air terrace, and two restaurants.

The development provides approximately 62,200 sqm (670,000 sq ft) of Grade A office space distributed over 32 floors. The outer skin consists of 28,000 sqm (301,400 sq ft) of high-quality, geometrically complex unitized curtain wall. A full 8,000 sunshades were installed on the south elevation, each with a slightly different size and geometry. The transparent roof of the Sky Garden is supported by 34 structural steel arches - almost 1,000 tons of steel - clad with around 4,500 sqm (48,400 sq ft) of double-glazed units. On the east and west sides of the building, vertical louvres follow the tower’s curved form to frame the Sky Garden.


160 m / 525 ft

34 stories tall

This is the first project managed with P.M.F. (Permasteelisa Moving Forward), the proprietary system developed by Permasteelisa to streamline the entire engineering, production, and installation process — from assisting architects in the early stages of the project all the way through to the successful completion.

The Project
Scope of Work

28,000 sqm (301,400 sq ft) of geometrically complex unitized curtain wall. 8,000 sunshades installed on the south elevation, each one with a slightly different size and geometry.

Technical Details
Ph.: © Simon Kennedy
Ph.: © Simon Kennedy
20 Fenchurch Street Project facade detail
Ph.: © Simon Kennedy

DEVELOPER: Canary Wharf Group PLC / Land Securities, a Joint Venture

DESIGN ARCHITECT: Rafael Viñoly Architects

EXECUTIVE ARCHITECT: Adamson Associates Architects

CONTRACTOR: Canary Wharf Contractors Ltd (CWCL)

More Information

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